Information profile @ a Glance
- Magnesium metal is produced by electrolysis of a molten magnesium
chloride electrolyte containing fluoride ions, the electrolyte being
derived from holding pond brines which are partially deboronated,
concentrated, gelled and spray dried in the presence of hydrochloric
acid gas to form discrete particles of high density anhydrous magnesium
chloride feed material for electrolytic cells - according to a patented
process
- Accoring to another patented process for producing magnesium metal
from dihydrate magnesium chloride comprising the steps of dehydrating
MgCI2.2H2O with anhydrous hydrochloric acid (HCI) to obtain anhydrous
magnesium chloride in an inert environment, releasing the mixture of
hydrous HCI and protection gas; and electrolyzing the anhydrous
magnesium chloride in an electrolytic cell fed with hydrogen gas under
free oxygen atmosphere content, wherein magnesium metal and anhydrous
hydrogen chloride are produced, wherein a part of the hydrous HCI is
passed through a scrubbing unit to obtain a hydrochloric acid solution,
the other part of the hydrochloric chloride gas is dehydrated by contact
with a desiccant agent in a drying unit to produce anhydrous HCI, and
wherein the anhydrous HCI produced by at least one of the electrolytic
cell and the drying unit is reused to dehydrate the of MgCI2.2H2O.
- In the electrolytic production of magnesium from an electrolyte
comprising magnesium chloride and impurity quantities of magnesium oxide
which adversely affects the efficiency of cell operation, the magnesium
oxide is chemically and electrolytically removed from the electrolyte by
sparging the electrolyte with hydrogen and/or hydrocarbon gas adjacent
the anode such that MgO reacts with H2 or, e.g., CH4 and Cl2 (generated
at the anode) under the electrical potential of the cell to form
magnesium chloride. Similarly, magnesium oxide may be mixed and stirred
in molten magnesium chloride and reacted with Cl2 and H2 (and/or
hydrocarbon) to form anhydrous MgCl2 for use in magnesium production.
- Magnesium can be produced either from a pyro-metallurgical process
(thermal magnesium oxide reduction) or by electrolysis from magnesium
chloride containing molten salt. The latter is the dominant process with
about 75% of the total production.
There are five thermal reduction processes and eight electrolytic
process that have been sued in the past or being used at present
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Basics
Companies
Technology Information
- Integrating the Production of Freshwater,
Salt,
Magnesium, and Bromine
- Seawater Bittern a Precursor for Magnesium
Chloride Separation
- Extraction of Valuable Materials from Reverse
Osmosis Concentrate
- Sustainable management of treatment of
Desalination plant concentrate
- The Production Process
- Magnesium Recovery from Desalination Brine
- Production of magnesium from desalination
brine
Consultants
- Consultant - water treatment solutions
- Technology Consultancy
- Technical Consultant
Patents Information
- Production of Magnesium Metal
- Process for producing Magnesium Metal from
Magnesium Chloride Brines
- Purification of Magnesium Chloride Cell bath
material useful for the production of magnesium metal by
Electrolysis
- System & Process for production of Magnesium
Metal & Magnesium hydride from Magnesium containing salts &
brines
- Recovery of Magnesium Chloride from Brines
- Process for producing Magnesium by Metal
dehydrating dihydrate Magnesium Chloride
- Production of Magnesium Metal
- Improving the Electrolytic Process for
Magnesium Production
- Thermal decomposition of Magnesium Chloride
Project Information
- Techno-Economic Feasibility of Extracting
Minerals from Desalination Brines
- Integrated processes for desalination and
salt production
- Magnesium recovery from exhausted brine - Pilot Plant
- Magnesium: Alternative production routes
- Supplier - Magnesium Chloride
- Consultant - Feasibility Reports
- Consultant - Salt projects
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